 /*******************************************************************************
  * Copyright (c) 2003, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.core.runtime;

 import java.util.EventListener ;

 /**
  * A registry change listener is notified of changes to extensions points in the
  * registry. These changes arise from subsequent manipulation of the registry after
  * it was initially created.
  * <p>
  * This interface can be used without OSGi running.
  * </p><p>
  * Clients may implement this interface.
  * </p>
  *
  * @since 3.0
  * @see IExtensionRegistry
  * @see IRegistryChangeEvent
  */
 public interface IRegistryChangeListener extends EventListener {
     /**
      * Notifies this listener that some registry changes are happening, or have
      * already happened.
      * <p>
      * The supplied event gives details. This event object (and the deltas in it) is valid
      * only for the duration of the invocation of this method.
      * </p> <p>
      * Note: This method is called by the platform; it is not intended
      * to be called directly by clients.
      * </p>
      *
      * @param event the registry change event
      * @see IRegistryChangeEvent
      */
     public void registryChanged(IRegistryChangeEvent event);
 }

